Toshiyuki Yanagisawa

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Patents Grantslast 30 patents

Information Patent Grant
Projector lens system and projector apparatus
- Patent number 8,693,109
- Issue date Apr 8, 2014
- Nittoh Kogaku K.K.
- Toshiyuki Yanagisawa
- G02 - OPTICS
Information Patent Grant
Lens system and display device
- Patent number 8,395,846
- Issue date Mar 12, 2013
- Nittoh Kogaku K.K.
- Toshiyuki Yanagisawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE